Mary Gwynn's Jersey, asparagus & chicken gratin
Waitrose and Partners

Mary Gwynn's Jersey, asparagus & chicken gratin

Chicken, baby new potatoes and tender asparagus covered in creamy Hollandaise sauce and tangy Pecorino cheese.

5 out of 5 stars(1) Rate this recipe
  • Serves2
  • CourseMain meal
  • Prepare10 mins
  • Cook35 mins
  • Total time45 mins

Please note that while we take every care to ensure the product and recipe information displayed on our website is correct, in the event that a product is unavailable, alternatives may be displayed and/or a substitution may be given. This may affect the nutrition and allergen information, therefore if you have any allergy or intolerance, please ensure you have reviewed the product label to ensure it is suitable for you to consume.


  • 300g Jersey Royal baby new potatoes, halved
  • 1 sprig of mint
  • 1 x 230g pack asparagus spears, trimmed
  • 200g cooked chicken without skin
  • 1 x 180g pack chilled hollandaise sauce
  • 4 tbsp Cooks' Ingredients Panko Breadcrumbs
  • 4 tbsp finely grated pecorino cheese
  • 1 pinch cayenne pepper
  • 15g butter


  1. Preheat the oven to 200°C, gas mark 6. Cook the potatoes with the mint in simmering water for 10-12 minutes until tender. Drain and discard the mint.

  2. Steam the asparagus over a pan of simmering water for 3-4 minutes until just tender then cut into 5cm lengths. Tear the chicken into pieces and place in the bottom of a shallow ovenproof dish.

  3. Arrange the vegetables over the chicken. Spoon over the hollandaise sauce. Mix together the breadcrumbs, Pecorino and cayenne. Sprinkle over the top of the bake and dot with butter. Bake for 20-25 minutes until golden and crisp on top.

Cook’s tip

It’s easy to double up and make this recipe for four, in which case it’s well worth poaching a whole chicken with an onion, carrot, stick of celery (all cut into chunks) and a couple of bay leaves, 6-8 black peppercorns and a sprig of fresh thyme. Cover with cold water and poach gently for 1 hour or longer if needed until thoroughly cooked, the juices run clear and there is no pink meat. Keep the liquid for stock after removing the chicken. 


Typical values per serving when made using specific products in recipe


3,595kJ/ 860kcals



Saturated Fat












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5 out of 5 stars1 rating